input/radio

===Name===
radio
===Type===
input
===Synopsis===
How to use radio buttons
===Description===
input elements of type radio are generally used in radio groups—collections of radio buttons describing a set of related options. Only one radio button in a given group can be selected at the same time. Radio buttons are typically rendered as small circles, which are filled or highlighted when selected.
===Parameters===
input type="radio"

All other valid HTML5 attributes are allowed
===Example===
<syntaxhighlight lang="html">
<p>Select a maintenance drone:</p>
<div>
  <input type="radio" id="huey" name="drone" value="huey" />
  <label for="huey">Huey</label>
</div>

<div>
  <input type="radio" id="dewey" name="drone" value="dewey" checked="checked" />
  <label for="dewey">Dewey</label>
</div>

<div>
  <input type="radio" id="louie" name="drone" value="louie" />
  <label for="louie">Louie</label>
</div>
</syntaxhighlight>
<p>Select a maintenance drone:</p>
<div>
  <input type="radio" id="huey" name="drone" value="huey" />
  <label for="huey">Huey</label>
</div>

<div>
  <input type="radio" id="dewey" name="drone" value="dewey" checked="checked" />
  <label for="dewey">Dewey</label>
</div>

<div>
  <input type="radio" id="louie" name="drone" value="louie" />
  <label for="louie">Louie</label>
</div>
===Note===
Radio buttons are similar to checkboxes, but with an important distinction — radio buttons are grouped into a set in which only one radio button can be selected at a time, whereas checkboxes allow you to turn single values on and off. Where multiple controls exist, radio buttons allow one to be selected out of them all, whereas checkboxes allow multiple values to be selected.
===Links===
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/radio